Recoil-operated magazine-firearm



(No Model.) 5 Sheets-Sheet 1.

' H. K. WHITE.

REGOIL OPERATED MAGAZINE PIREARM.

Patented Dec. 20, 1892;`

(No Model.) f L 5 sheetssim *2. H. K; WHITE. g REGOIL OPBRATBD- MAGAZINE PIREARM.,

No. 488,409.. "P'aten'tred De@` 20.18.92.,v

(No Model.) 5 sheetssheet 3.

HQK. WHITE.

`RBGOIL OPERATED MAGAZINE BIREARM. No. 488,409. Y' Patented Deo. 20,1892'.

(No Model.) 5 sheetssheet 4.

H. K. WHITE. REG OIL OPBRATED MAGAZINE FIRLARM.v No. 488,409. PatentedDeo'. 20, 1892. 5 @2J/f A? c L f l/ l .f/ I0 l v 5i (No Model.) Y 5 Sheets-Sheet 5. H. K. WHITE. y

RBGOIL OPBRATED MAGAZINE lI DIREARM.

Patentd Dec. 20, 1892.

I UNITED STATES PATENTl OFFICE.

IIARRY K. wI-IITE, F THE UNITED STATES NAVY, Ass GNOR To TIIEIWIIITE MAGAZINE RIFLE COMPANY,

OF ALEXANDR A, VIRGINIA.

SPECIFICATION forming part of Letters Patent No. 488,409, dated December 20, 1892.

-.Application Bled March 27, 1891. Serial No. 386,679. (No model.)

i To all :whom it may concern:

- Be it known that'I, HARRY K. WHITE, of

the United States Marine Corps, stationed `at Annapolis, iny the county of Anne Arundely andState of Maryland, have invented certain new and useful Improvements in Firearms, of-

which the'following is a specification, refer-- ence being had thereingto'the accompanying drawings.

as a' magazine gun either 'slow-ly or rapidly,

and will cool oi -rapidly during firing; also to produceva magazine` which will be readily changed'or charged, and to' improve the magazine and feed mechanism; also toimprove the breech opening and closing mechanism, and

the cartridge extractor and ejector, and generally to improve a tire arm of the class 'de- In the'drawings Figure .l is a1ongitnd inal .verticalsecton of the breech boltand'receiver, -showing ill-elevation parts of the bolt, the trigger having vbeen pulled, the recoil mechanism and the cartridge feeding mechanism.

Fig. 2- is a vertical cross section of the bolt and receiver 'on the line a-a Fig. l showing' .an outline of the operating arm'in dotted lines, and the end ofjthe bolt closing spring rod. Fig. 3 is a top" plan showing the transverse locking bar and its operating plate with` a horizontal section of the rear part of' the bolt and receiver on a plane through the top surface of the operating plate, and part of the forward part of the bolt with the cover removed. Fig. 4 is a vertical cross section of the transverse lockingbar. Fig. 1 5 is a side elevation and partial section of the rear portion of the barreland fore stock, showing an air space about the barrel, asliding and a fixed cover and groove in the stock, the apparatus for pumping airinto the air space and the supports for the sight. Fig. 6 shows the con struction for guiding the muzzle of the barrel 0n recoil, and the means by which the heated air is drawn out of the air space about the sight. Fig. 8 shows in perspective the means by which the'arm havinga barrel movable on recoil may be used with bayonet ixed. Fig. 9 shows in perspective the bolt, the bolt cover, 5 5 the transverse bolt locking bar, part of the firing pin and the extractor with the extractorlocking bar. Fig. 10 isa perspective of the breech withthe bolt removed showing the feed stop, feeding shafts, apart of ltheope'r- 6o ating arm-and handle, together with the spring and rod to force the operating arm forward after drawing it to the rear in opening the breech,`and the parts of the feeding appa-,y ratus projectng,-to`-be operated by the right '65 hand. Fig. 11 is a top plan view ofthe .cartridge feeding mechanism with the automatic arrangement for releasing the operating arm. 'Ihe right -side of.the magazine receiver shows part of a magazine in place, 7o the-left side showing the method of holding the cartridges when no magazine is used. Fig. 12 shows a front elevationof the recoil mechanism in rear of the magazine 'receiver with a cross section of the bolt on the line b-b Fig. 1. Fig. 13 shows'a rear elevation of the feeding 'mechanism and the magazine feedl stop, with across 'section o fthe bolt-on the line c-c, Fig. 1 The side plates of the magazine receiver are moved ont to'give a clear 8o view of the interior. jFig. 14 is aside eleva-- tion of the magazine. Fig. 15 gives. .ve'rti l cross and, longitudinal sections of the oper ing anms to show the handle attachments.-

Fig. 16 shows the base of the recoil cylinder 85 l in the butt, and its valve. Fig. 17 lis an elevation of the breech 'portion with the side broken' away to'show the working of the automatic rocking frame by a cartridge; the position of the tray frame when forwardto al- 9o low the entrance of a. magazine, the trayy being in position to move under and catchthe cartridges when drawn to the rear; and the extractor locking bar caught by its spring to be held back when the bolt is moved forward. Fig. 18 is an isometric view f the rocking frame. Fig. 19 is a cross section on the line c-c, Fig. 17, with the feed stop down, showing how the cartridges in the left compartment of the magazine are held and prevented roo from rising While there are any cartridges in the right compartment. The side plates of show lthe leaf holding the cartridges and lto a mechanism in different relative position, the

block 5.

the receiver 32 at its breech. The "barreliis creasing the radiating the-barrel may cool rapidly during firing. I

prefer to form these grooves ci rcumferentially, f

ing ofsuch section thread cut-onthebreech over this end of -the Y wire sol that it is locked or held by the thread ofthe barrel, and by the grooves in thebuter the magazine' receiver are moved ont to show the spreaders for the magazine. j Figu20 is a side elevation of the feed stop showing the ejector.. Fig.' 21 is a top plan view of the magazine; one cbrner being broken 'away to show the method of uniting the central'plateto the rear plate. Fig. 22 shows cross sections of wires that may be usd to form ex ternal grooves on the barrel by wrapping, a'nd a method of securing the ends of the wire. Fig. 23 is a partial side elevation and partial section of the breech ahd magazine, and other operative parts of the gun, the barrel and receiver in recoiled position. Fig. 24 is a partial elevation and partial section, with' the receiver -being for-wardand bolt heldback. Figs.25, and 26, are details of the-handleor thumb piece. Fig. 27 is an in vented -view o f The barrelfO isscrewcd vinto the -head A'o'l formed with longitudinal or circumferential grooves on .its exterior for the purposeof infsurface in order; vthat as'shofwnat 6 Figs. 1, 5,.and 6, se. as to prelserve the transverse strength. These grooves may-be cut infthe metal of a solid'barrel but I prefer tol form t them by wrapping a steel Ytube with wire under tension, this wirebeas to form spiral grooves (Figs. 1,5, 6,*and 22) on the externalsurfaceof the tube. vTo accomplish lthis I may. use. w-ire of section similar tothe forms shown in Fig..22. To secure the endsv ofthe wire I turnthe end into the groove 83,cu't in the Venlarged part of the barrel at an angle to the. wire,and on the breech portion continue the of the receiver whenscrewed over the breech ,of -the barrel. In orderl that the heat may more readily pass fromthe interim.` to the external surface, a solid metallic mass is formed air about the barrel by'the cylindrical cover 88 (Figs. 1 ,and 5) secured to the receiver, the cover 89 (Figs. 5 and-6) over the forward part of the barrel securedto the stock, aset of cir Vcular or spiral grooves 3l Aand longitudinal grooves 95 Fig. 5 cutvin the stock in the seat surface of the barrel hereinbefore referred to. The-muzzle iscentered in the forward cylindrical part of the cover 89 by the ribs 7 Fig/6 the spaces between the ribs allowing' the egress of the air from the air space between the barrel and the cover. The forward ends of the ribs 7 are tapered down and there 1s formed about the muzzle between the barrel and the cover 89 an annular opening or ori- .on the muzzle.

tice 84. On firing, the rapid passage of the gases pastthe annular openng'causes'apartial vacuum in the spaces `,between the ribs 7. The heated air in the air space 87 is d'rawn out thronghthe spaces between the ribs and through theA annular opening. about the muzzle, .causing fresh. air toenter. the

air space aboutthe barrel through the breech openings 100, Fig. 5 of the stock to cool the barrel. 4 A Thebarel and receiver moveto the rear on recoil, being checked by compression of the air in the cylinder 67 `Figs. 1 and 16` as here-` inafter described, and 4return through the action of the spring 69 Fig. 1. During this mo# tion the receiver slides in the bed 59` and the muzzle is guided bythe ribs 7 sliding in the cover 89the front sight moving inthe slot 95 vin the cover shown in Fig. 8. -As the front .sight cannotbe used to hold the bayonet, l provide the spring catch 96 on theI stock .whichienters theear 99 on the-bayonet, in

fixing bayonet, .the head ofthe catchI springing out -to catch ear 99 and holdthe bayonet '1 0 allow the sight-94m move to the rear inthe bayonet slot, 98, Fig. 8, I continue this slot through the -baseaofthe bayonet socket and rivet on the' strengthening piece Oat the-side of the slot.. :InA untixing bayonet the spring 96 is pushed back 'by the thum'b out of engagement with the ear 99 and the bayonet is withdrawn from the muzzle.

To support the rear sight'and the cover 88 under it, blocks 61'-, Fig. 5,3 fitting .over the barrel are placed between the barrel and the ,cover and the sight screws are screwed intothese blocks.

The bolt slidesl back and forth inthe receiver which has the usual openings above and below for theV passage oi. cartridges. It consists as shown in Fig. 9 of the 'main piece l, the cover 2, the pin 4 (Fig. 1) to securethese parts together,`the transverse lockingy bar 5 and the longitudinally reciprocatingplate 7 Ila Fig. 3 to operate the bar 5, said plate-' being provided with 2,-and 3 -In the boltis the tiring pin A18 Fig. 1, having vthe spring20' therear end of which rests on the abutment formed by the shoulders 3 on bolt 1 and cover 2. The forward end of spring 20' engagesthe enlargement on the' forward endof 'the tiring pin.- For this engagement there is a helical groove 422", shown in dotted lines in Fig.'1, cut in the rear facev of the enlargement. The en d of the groove,

land therefore its foremostportion is in rear of the firing pin point which is placed eccentrically. The spring being constantly under tension, the tendency of its forwardend is to seek the foremost position possible, that is the end 'of the groove and remain there, and this end of the spring will therefore always be in rear of the firing pin point. The object 0f this is that the spring may act in the axis of the firing point and decrease the liability of breaking the point on striking the carl.; tige, and also act near the axis of the center of the operating arm 9. Figs. 10,

-Izo

i gravity of the pin of the form shown in Fig.

- bling, and the bolt has recess 85' open above 1 to avoid vibration and unnecessary friction. The part 'of the pin within the springis round .to form a spindle for the spring and the rear lpart isof rectangular section being bent up to form the thumb piece 22 and having safetyv and full cock notches 16 and/17. The sear 19 in the receiver engages these notches as usual.

The bolt has the inclined recess 60 Fig. 1 through the rear; part, through which the rear end of the tiring pin is dipped in asseminto which the forward end of the pin is next introduced, the tiring pin point being then allowed to spring forward into the hole in the forward end of the bolt. In the rear part of the bolt is a rectangular recess in which reciprocates the transverse locking bar 5. O'ver this is placed the longitudinally reciprocating plate 7 Fig. 13 having the slot 8, the rear part of which is straight, and parallel with the length of the bolt. -The slot in frontofthis -straight part extends obliquely and nearly across plate 7. The slot 8 receives the lug or pin 6 on the locking bar 5. The plate 7 slides between the side plates or ears on the rear part of the bolt or cover, plainly shown in Fig. 9, and is held from coming out of the bolt in moving to the rear by the forward end of the slot 8 bringingup against the pin 6. The cover 2 is placed over the plate 7,its forward part fitting in and closing the -opening of the recess 85' above the firing pin. The forward end 77' of the cover 2 fits intoand is held by the undercut recess S0' in the bolt, and the pin 4 is passed through the holes in theears 76 on the rear part of the `coverand -the corresponding hole in the rear' part of' the bolt. The. parts of the-bolt are thereby secured and held together.

The bolt is locked when forward againstl the breech. by the vtransverse reciprocating bar 5, the ends of the bar engaging corresponding recesses V8G' Fig. 10 in the receiver to hold the bolt securely in firing. On mov. ing the plate 7 to the rear as .shown by the dottedlines Fig. 3 the cam slot 8 operating on the pin 6 moves'the bar 5l to the left, disengaging it from the recesses inthe receiver. Part of the metal in the rearof the left recess in the receiver is cut away forming a longi- 'tndinal slot in the (74 Figs. 2 and 10) to allow the locking bar frame at the left hand side 5 .tomove to the rear with the bolt after being moved to the left 'in unlocking, corresponding slots 75 being cut in the bar5- to' pass 74', as shown in Figs.2 and 9,

over the parts of therecever remaining about part only of the bar will'move in slot 74.

In a recess in the forward end of the cover 2 is pivoted an extractor of the form shown in Figs. 1, 9 and-17 secured to the cover 2 by the pin or pivot 33. 'lhe extractorhas a spring 34 Fig. 1 bearing on the back of the recess in the cover to throw down the hook end of the extractor. ln a groove in the upper side of the cover 2 slides the extractor locking -bar 11.

Vrcmairxing ove tridge.

that is, thethin flwhen the bolt is locked and. ready .for firing,

the forward end of the 'bar`11 extends over the extractor, as shown'inFigs. 1 and 9,-sand locks it down. y 9 the bar 5 is moved-to the left through the action ofthe plate 7 as described. The bar 11 moves back-Vith the' bolt, its forward end the extractor until the lbolt scribed. The faces 37 Fig. 9 on the bar 5 On drawing back .the operating arm moves a little way frward,as hereinafter de- 4 faces in the receiver recesses 86' the bolt is started back. The extracting face 38 on the bar next engaging the corresponding face on the lug 39 (Fig. 3) on the receiver, the bolt-` is drawn still 4farther back, until finally the` bar 5 isdisengaged as shown in Fig-.2 andiii dotted lines in Fig. 3. Continuing the pressthe forward end of the slot 8 the'bolt-iscarried Ito the rear by the continued rearward' ure on the operating arm, the pin 6 being at the end of the bar 11 remainingover the. ex- 4.

tractor and holding it down over the rim of the cartridge.

The firing pin-is provided lwith a projection 23 (Figs. 1 2 and 9) engaging a corresponding cam face 24 in-a recess in the bar 5, the-bar 5 `havinganother recess 25, to the right of the. cam 24` and adjoining it. While the bar 5 Vis moving to the left the withdrawing face or cam 24 engaging the projection 23 en the tiring pin, forces the firing pin back until the recess 25 in thebar 5 passes-infront of theprojection 23. The firing pin ,then springs for the recess 25 to hold the bar 5 and prevent it from returning to the right until, when the bolt is nearly home again when being moved forward, the. sear incocking the ring pin lwithdraws the projection 23 from the recess 25. While the tiring pin has been in the above described position holding the bar 5 it v has been held back enough to withdraw the point fromthe front bolt face, thus being prevented On forcing the operating arm and plate 7 connected thereto forward to close the breech the bar -5being held by the projection -23 on the firing pin and prevented from moving to the right in the bol tthe bolt is pushed forward by the forward movement of bar 5'. The spring 13 on the` receivercatches over the forward end of the bar 11" (Fig. 1,7) and pressing it back holds it 'while .the bolt moves forward. By this means the extractor is uncovered and is free to spring over and catch the rim of the cartridge when the bolt is closed against the barrel breech. When the ends of the bar 5 are opposite their recesses 86' in the receiver, the action of the slot 8 in the plate 7 upon the pin 6 forces said bar to thc right, locking the bolt, the .entering face 36' on the bar 5 causing 'its easy entrance into the recesses and the inclined locking faces 35,

from accidentally firing the Icarf' x15 ward, the "projection 23 entering' l l straight partof theslot 8 in the plate 7 passes aboutthe'pin 6, lockingthe transverse bar5 yand atthe same time the .lug` 12 on the pl e 7 (Figs. 1,-and 3) engaging the rear endof t 'e bar '11. forces, said. bar forward,' the forward end 'passing over .the extractor, to remain there and lock the e'xtractorduring the next opening'of the breech. .As there may be some wear of the bolt lockinfrmechanism after long use, the part of .the pin 6 above the trans'- verse bar 5 is vmade with its. axis. slightlyto one side ofthe axis of the lower part .in the crossbar. as shown in Fig. 4. .When the parts are worn by reversing the :pin 6, placing'the present left side on .the right, the wear will be. taken .up and the.breech. .tightly closed when locked.

The sean. is. pivoted in a recess in the receiver and pressed up by the.spring 2Q se-V cured t'o'the receiver. It'is depressedonpulling the trigger by means of .the bar 724v having. the head 73, (shown clearly in'Fig. 12,) which catches over the lug 74 on the sear when the barrel and receiver are .forward in the firing position (Fig. 1). The bar 72 movesin the guide75 on the arm 76 attached to the bed 59, its lower endl being attached tothe trigger arm 71. The; rear part of the p receiver 32 has a' i`at`under` surface with projecting ribs 6lat .the sides (see Figs. 1, 12.) This part of-the receiver rests in a corresponding guide plate on .the bed 59. -The sides'of the bed rising on; each side of the receiver have grooves in which the ribs 61 on the receiver slide.

.In this'way thebed forms a holder and guide for the receiver. '.The bed 59 issecured to the stock,`and`has an opening corresponding with the opening 40' Fig. 1 in the' receiver for lthe passage of .cartridges from themagazine. This opening @in the bed is continued to the rear, to allow the movement of the'arr'n .42

-prijtectiiig .down from the receiver(l'1`igs."14 andlz). f The downward projecting arm 42 on the .receiver 32xserves to .carry theR -recoil piston 68 and 'the spring'69A and to en gage .the buier 77.on the return `from the recoil, to ease" the stoppage of th`e-receiver and bar'rel. v The buffer 77 of rubber is carried on he arm 76 secured to the bed 59. On the side f the arm 442 is .the lug 62- serving as a guide `or holder for the rod or bar 63. The bar 63 has, the head 64- .which tits into the corresponding recess' 66.-un,der'the 'bed-"plate, shown in Fig. 1, and holds the receiver and barrel to the bed plate The bar 63 is held up with its head in the re'-` cess 66, whenin 4the forward position, by thespring 65 on the guard plate, the spring then passing under and pressing up the lower end of the rod.

The forward end ofl the spring 65 passes' ,ton passes out the normal under the trigger arm 71 and by .this means holds the bar. `2 upn place that its head may be above the sear lug 74 'when the barrel is` forward .and engage said lugon depression. In case the headl should be below the sear lug 74 on return vofthe barrel,'.the head is so formed with an lincline-at its upper end (as shown in Fig'. 12,) as to canse the bar 72 to spring out in the guide 75 while rising, and allow the head to pass above the lug 74 into place to engage said lug.'

When ready to tire, on pulling the trigger the spring 65 is first depressed by the trigger arm 7l, and the head 64 of the bar is allowed to drop out of the recess 66 in the bed 59, as shown in Fig. 1. On further pulling back the trigger, the sear is disengaged from the firing .pin and the piece is fired, the barrel being.

now' free to recoil against the air in the recoil cylinder 67 and the springs 69 and. 57, Fig.' -10. Of course the-barrel in its recoil carries the receiver and connected parts with it. The forward and rear sides of the head 64 are inclined in order to more easily enter the re- -cess 66 inthe bed, and also to allowgof its becoil, the air within the cylinder being thereby compressed and mostof the shock of the recoil taken up.- .When the rear limit of-the recoil is reached, the piston 68 strikes the projections 43 on the ring shaped Avalve 42', (Fig. 16) over the passage 44 and pushes the roo valve back against the pressure of the spring 41', thus opening the passage 44. The compressed air in the cylinder67 is then free to escape through said passage. On the return of the piston 68,.the valve 42 is forced forward over the passage 44 by the` spring 41.

- A partial vacuum is .thereafterformed in the cylinder 67, during the'return of the piston 68, until the piston passes out of the cylinder at the end ofthe return, as s'hown in Fig. l, and the motion of the barrel` is thereby still further-checked'or retarded.' After'the pisj pressure is re-esf tablished in the cylinder 67.

IIO

The A*spring 69 and the spring 57 serve to 1 take uppart of the recoil,.but the object of;`

the spting-69 is to return the barrel to place `after recoil,'and the object of the spring 57'- is to force the operating arm 9 forward and thereby closeand lock the belt. The base of the cylinder 67 rests on the bottom of the hole' bored in the stock, as4 shown in Fig. 16. By this means .most of the strain of the recoil is brought upon the larger part ofthe butt, and Ithe small'of the stock is thereby relieved. 59 when they are in the forward position.

Fig. 1. Y The action of spring 69-is to force the arm 42`forward after recoil, thereby returning receiver and barrel to place, said spring having been compressed by the action of the arm 42 during recoil, and having checked the recoilat its end by extreme compression. All the rearward pressure of the spring (S9-is exerted on the shoulder 46 of the cylinder 67,

and by this means the part of the strain of the recoil acting through said springs is brought upon the butt as above described.

The cover v88 (Fig. 5) is secured to the-receiver and moves with it. It is cylindrical, and the forward. part slides in the cover 89 on recoil. v The cylinder 83, Fig. 5 is secured to the cover 88, and has a piston 3p provided with the rod 3 which is'held by a pin 89 passed through a hole in the stock and through thev head 4 of said piston' rod. 0n recoil and return the cylinder 83 moves with barrel and receiver, and the air within it is forced out by the piston into the airspace 87, to cool the barrel. The valves are provided to secure this circulation and prevent the return of the air to the pump, the pipe 86 taking the air from the'forward end of the pump to the air space. The air on ente/ring the space. 87 is given a circular direction about the barrel, (the valves in thecylinder S8 opening toward one side,) and passes spirally along the barrel through the grooves 6 and 31 in barrel andvstock respectively and out at the muzzle. I may take the air from the passage 44; in the recoil cylinder 67 tothe air-space 87 by a pipe similar to the pipe 86.

Secured to the bed plate 59 is 'the cylinder- 56 (Figs. 10 and 2) having a rod 56 withra spiral spring 57 about it, which spring may be compressed between the forward end of the rod 56 and the rear end ot' the cylinder 56 bymoving the rodfto the rear. The rear end of the' rod 56 is bent at a right angle, to form an arm 81 so that when the arm 81 is turned down to the right, it will engage the notch 58 in the operating arm 9. l It may be turned up asshown in Fig. 2 to disengage the operating arm and allow the `removal of the bolt. The'catch 54 is a transverse lever pivoted intheframe. The nose 54 of said lever isthrown out a little at one side, by the spring 542, which rocks the leveron its pivot. Wrhen the catch 54 is rocked against .the force' of said spring, (dotted lines, lFig. 11)its nose rocks inward, arm9.

In recoil the spring 57 is compressed, and at the end of thel recoil theoperating arm 9 is caught and held by .the catch 54 (Figs. 1

and 11) while the barrel returns forward.l

This action draws the" locking plate 7 to `the rear inthe bolt, and by this meansthe trans-f verse locking bar 5 is drawn to the left, 'unlocking the bolt and holding the bolt during the return of the barrel. When the cartridge is inA place in the receiver ready to be pushed into the chamber, the catch 54 is released au' tomatically as' hereinafter described, and the to release the operating.

operating arm 9 of the plate 7, moves said plate 7 forward. Thisplate 7 forces the bolt forward and finally locks it as before described.

The magazine is made of thin sheet metal and has a plate 24. (Figs. 1l and 21) in themiddle, forming two compartments foreartridges. It is open above and below, and may beinserted in the stock and used either side up. The cartridges are ordinarily held and kept from coming out of said openings` by ears 25formed by slitting the sides at 47 and springing in-the ear. The ends of the ears 25 are bent out to catch under the spreaders/S .when inserted in the stock. The cartridge heads are held by means of the leaves 49 formed by cutting the plate along'the line 29," 29', 29', Fig. 14, and springing in the leaf so made to a permanent set, as shown in Fig. 2l. The object of this construction is that a number of cartridges may be inserted in the magazine at one time from its front, which is open as shown, and when so inserted the cartridges will be helde by the leaves '49', which spring them and catch the rims of the cartridges'.

press the cartridges in toward the'central plate. .The charging of the magazineby the means described is thereby accomplished in One operation, or in onel operationA for each cartridge compartment. rThe rearcorners of and forward, as shown in Fig. 14, andin Fig. 2l (lower side). The object-of this construction is to form guides for the cartridge heads which guides will direct the cartridges over the central plate in rising iutoplace in the passage 40into the receiver. This magazine to form theback plate and twofside plates as shown in Fig.- 21, with a central plate 24 united to the said back plate by-mean's of lugs 91- on the central plate, inserted in corresponding holes in the back plate and upset to rivet and hold them in.

The magazine receiver 26 has the back plate two side plates 81. These side'plates 8`1 are easily entered. There are two trays or followers-'27 for raising the cartridges, each having frameis'made by cuttingput a plate to the requiredshape, the legs 29 being bentvvin'to planes at right angles to the plane of the plate to give them st-iifness'in the vertical d'ispring 57, acting through the rod 56 on the- (Fig.19) on the bed 59 and open the upper side Said leaves 49 are given enough resilience to` is constructed of a single sheet of metal bent in after the passage'of the cartridge heads by ico the side plates ot' the magazine are'bentin TIO 'H5 8O formed in one piece with or united to the-y bent under and riveted together/forward 0fthe opening left for entering the magazine, one ofthe plates being further bent upto form the center plate 52 of. the magazine.' The lower rear lcorner ofthe center plate 5 2y is chamfered orfv to allow thel magazine to be aspring 28 secured to a U shaped frame as shown in Figs.. `1 and ll, 13, .and .17. This rection, andthe tray springs -28 are secured;` to the connecting part of the U. On the ends corresponding with thevgroove 52', (as-shown in Fig. 10,) and the pin extends out far enough to form .the h andle by which the feedingl frame is manipulated. On moving said han'- dle forward, the pins 32 move down the guide slots 52', and the frame with the springs and trays is moved forward into the space left in the stock for it, the rear ends ofs the legs 29 moving down with the pins 32 and carrying the trays 27 down with them. The trays 27 being carried forward with the frame as described, are out of the way and-clear of the openingin the magazine receiver, and a maga? zine'charged withcartidges may then be infserted. The magazine having been inserted?, the handle 32 lis moved back np the` slot 52', the frame with the springs 28 and 'trays 27 is carried to the rear, the ends ofthe legs 29 moving up with the pins 32. The trays Aare caught and prevented fromrising by the spring catches 30 on the center plate. These catches are formed by cutting the center plate I52 to form strips which areattachedfat theil` upper ends to .said center plate52 as shown in Fig, 1. These strips are sprung out and the lower ends are bent inl to form good en' gaging ends for the trays 27, the shape bein shown in Fig.,13 by dotted lines. After the ends of the trays have passed nnder the cargtrldges, thefspring. catches 30 are pushed oi the trays'27, as ,said trays continue moving.

to the rear,by the cam action ot" thesprojec'f. tions 31; on the trays. The inclined edges of said projections 31 Hatten the spring catches 30 back so that they donot project from the plate-52, and thus the trays arefree to rise.

- The trays are then free to risethrongh 'the action of their springs 28, and to press underfneath the cartridges. 4After the pins32Y areto the rear in place they areheld ',up in the upper horizontal part of the grooves or guides 52- in the side plates 81, and the forward part of the tray-frame rests on the step .94 (Fig'. 17,)-on the center plate 52. l The action ofthe frame and trays is then simply to press up the cartridges,the-spring 28, having been pnt under strain by the upward movement of pins 32 and connected parts just above described.

The right hand pin 32, to which thev operating knob is attached, has an inwardly projecting hook, 33, which hook 33 forms an ejector (Figs. 13`and 19) for the empty magazine, by which said magazine is forced down onmoving the handle 32 down the slot 52.

' In order that the right side of the magazine may be first emptied, the spring 39 is secu-red to. the'center plate 52 (Figs. 1, 11, 13, and 19). While .there are any cartridges in the right compartment, the spring 39"is pressed to :the left bysaid cartridges, and its-endpassesover the cartridges in the left-compartm ent to prei-y The left pin .32 works inl vent them from rising. When all cartridges are out of the right-compartment, the spring 39 returns to the posi-tion shown in Fig. 13 and allows the cartridges in the left-compartment to rise. Each cartridge as it rises into position in the passage 40' to be entered into the chamber moves sidewise under the center ofthe receiver. As the cartridge rises and movesto the center the bullet engages under the inclined plate 46 on the rocking frame 44 shown clearlyin Figs. Y17fand 18, and as the cartridge rises, under the influence Vof the -followeigthe point ot the bullet acts as a cam,

and rocks the frame 4'4 into the position shown v in Fig. 17. The rocking frame 44 has two arms, as shown in Fig. 18, which arms are' connected at the top by'the, plate 46; The arms 44 have pins 45 at the lower endsas pivots, saidpins working in slots 53= in the side plates 8l,v.shown in dotted lines in-Fig. 1. The plate\46has the forwardrfprojection or vertical plate 54 which engafges' thecen tral plate152 and prevents the rocking frame frommoving-forwa1d until the cartridge, in rising with its'bullct under thel plate 43 lifts the rocking f-rame sufficiently for theinrclined edge 50 onthe projection 54 .to engage the incline`5l-on the central /plate 52, the pins45 moving up in the slots 53l while the rocking frame is rising. Then, in moving forward,

.th-rough. the oblique' action of the cartridge head, the plate 46 allows .the cartridgeto move up past said Aplate 46ginto position to be pushed into the chamber by the bolt. At the same time, by means of` he pin-57fon the rocking frame acting onthe forward end of the slot 58 inthebar 53,- said` bar' is drawn forward. The bar 53-acting on the arm of rco 1 the-catch 54 (Figs. 1, and 11) draws forward the long arm of `said catch 54,-compressing spring 542, and drawing in thefnosenof'zthe catch. .-'lhus the operating arm 9 is released and allowed to move forward .through the action of the rod 56- and spring 57 aszbefo're de` scribed.

In order that the above described actionof the rocking frame may not take place in the` case that a shell isI not extracted from the chamber, I provide a safety arrangement which prevents the plate 46. andthe rocking trame from moving forward. It consists of Ithespring 40 (Figs. 1 and 17) secured to the receiver and provided with the projec-V tion or horn 41. The horn 41l works in a slotA -is not mough to allow the projection y54 on the rocking frame to enter,and the rocking drame is not permitted tomove forward and hence does not release the catch 54.- In case the shell isextracted,the horn 51 is permitted l`to rise into, the chamber,and allow1 suliicient -space for the projection 54f to enter between .said horn and the in cline 51, whereby theoperation of the rocking frame by the cartridge in rising is permitted. After the cartridge has risen the rocking frame falls into posiz tion to engage the next cartridge.- The upper edge of the projection 54' is inclined in order that it may be pushed down by the receiver on recoil, in case it. has not fallen enough to clear the receiver. The rear edge of the horn 4l is inclined, inorder that it may be pushed down by the bolt when the bolt is being closed against the barrel breech. When all the cartridges inthe magazine are used there is, no action of therocking frame, and the bolt remains open untilanoth er magazine is introduced. i

/A means of releasing the catch 54 at will, and of holding it in, is provided in the shaft 70 (Figs. 1, 10, 11, and 17). The shaft-70' has an arm 72 which engages the lug 71' on the bar 53, and a thumb piece 73' by wliichitr is operated. On pushing forward the thumb piece 73', the lug 71 is pressed forward, and bar 53 is moved with it. When the bar 53 1 is thus moved forward by the arm 72', the

catch 54 is released, the slot 58 in the bar 53 permitting the bar to move forward over the pin 57 on the rocking frame. By turning the lthumb piece 73' through ninety degrees, the arm 72 will be brought at a right angle with the lug 71 and hold it forward against the tension ofthe catch spring 54, the

end of the arm 72 entering a shallow groove.

in the lug 7l' shown in Fig. 1 to prevent the shaft 70' from turning back through the jarring of the piece. By this means the catch l54 is held in order that it may not catch the operating arm 9.

A In order that the cartridges may befed one byone, there is provided a vertical shaft 36 on each side of the receiver, each of said shafts having conical projecting stops 38, to catch and hold down the trays 27. These stops have a portion cut awayas shown in Fig. 11. The upper end of each shaft 36 is bent to form an arm 37. On recoil the receiver head strikes the arm 37, turning it to the rear and bringing the cut away portion of the stops 38 on the inside. The tray is then free to rise slightly until the cartridge comes under and'against the receiver. On return of thel receiver from recoil the'arm 37 turns in` again througlrtheaction of a spring 87.(Fig. 13) on the lower end of the shaft 36, engaging the side plates 81. When barrel and receiver are forward in place, the cartridge is free to continue moving up into place in the opening 40 until the tray comes under and is caught by the next stop 38. There is no stopy 38 correspondingwith the lowest position of the right tray 27. The object of this is that the right t'ray may 'feed one cartridge as soon as, in` moving back after the magazine is entered, the tray Y is released from the catch 30 on the center plate 52 by the cam 31. To the end also that the right tray 27 may be released before the left tray, and start the cartridges in the right compartment, the catch 30 for the right tray 27is forward of the catch 30 for the left tray 27. l

In order that the giininay be used as a single loader, a feed stop14'is provided, in the shape of a section of acylindrical arm which. slides rotatively about the receivenin agrecess or groove cut in the, outside of the ref ceiver. It is shown in` Figs. 1, 10, 17, 19, 20. y It has the lng 55' iby which it may be'inoved up or down. When using the magazine this stop is up in full sight of the othcer commanding the troops, so that he can easily perceive Whether magazines are being used contrary l to orders.

the receiver is to push the stop down out of 'natural Vaction in introducing a cartridge into y the way, in case it is up. .'VVhen d'own,'tl1'e lower end of the stop obstriicts the passage 40' fro'rn the magazine, as shown in Fig. 19, l

and prevents the cartridgesin'themagazine from rising into the receiver. Every time the tray frame is moved forward, in order that a magazine may be introduced, the stop 14,is moved down (in case it is up) and the arm becomes a single loader. This is accomplished by means of a vert-ical arm 34 (Figs. 13' and 19) on the left bar 29. The :arm 34 has a ratchet like head to engage a groove 35 cut y spirally on the stop 14, (Figs. 20, 13, and 19.) Whenever the handle 32 is moved forward the head of the arm 34, engaging and moving forward in the groove 35, turns the stop 14 down. The groove 35is of triangular section',

in order that the head of the arm 34 may catch'on the lower edge only of the groove, and operate only to move the stop 14 down. On the stop 14 is the spring 15,provided with the head 45', of the shape shown in Fig. 1.

The head 45' springs up after the passage of i the bolt, and acts as an ejector, to strikev under and throw out the shell. The rear end of the head 45 is sloped down so that it may IIO pass under the bolt when the bolt is` moved forward. y

f I form the magazine receiver so that it may be charged with cartridges without the use of the magazine proper, if necessary, by employing a spring 78 (Figs. 1, 1l', vand 17) on each side to take the cartridge heads. Each spring 78 has the outer edgeriveted to the rear plate 8O of the magazine receiver. Theinner edge of each spring 78 springs forward or out from the vrearl plate 80. The inner edge of each spring 78 is turned over to form a guide or holder 79 for the cartridge heads, engaging' said heads in the manner/shown in the left side or compartment of the magazine receiverfk inFig. l1.

the upper end 82', toguide the upper cartridge forward in feeding. The lower part of the strip 78 vis out away as shownv at 59' Figs. 1 and 17 to allow, the magazine to enter easily and push the spring back when said magazine is inserted. j

Whether manipulating the breech block by The strip 78l springs forward at s' f j v *488,409

an innerv spring leaf 64' joined to said outer leaf and provided with an earor hasp 66'. In the'se ears are square holes which register with each other. The earor hasp from the inner leaf extends outward, and the ear or 'hasp ofthe outer vleafextends inward, each nearly to the opposite leaf, so that the ears or hasps overlap each otl1er,'and the holes are normally in' line vwith each other, and into these'holes a square .pin 67 in the operating arm 9 isvforced by means of a spring 92 shown in ',Fig. l5, ordinarily locking the -two leaves together. y When theleaves are on the operating'ar'm 9 and looked together, the pin or stud 68 on the leaf 63 enters a corresponding hole in the operating arm 9, and secures the handle to the operating arm. The oper-A ating arm 9 may then be moved back and forward bymoviug thehandle 62' back and forward. l`When the arm 9 is in the forward posltlon. and the'gun is ready to be fired the pinil on the stock' enters the holes in-the ears' and 66', forcing the locking-pin 67' back out of the ears. The pin 69' is of naI-,x

rower dimensicnat the end than the square holes 1n .the ears65' and 66', so that upon downward` pressure of ,the thumb on the handie 62( while pulling the trigger, the leaf 63 1s free to turn outward as shown by dotted lines Fig. 15 against the tension of the spring leaf 6 4', thereby disengaging 4the stud 68' from the arm 9. The handle 62 is then free to remain on the'pin 69' beiugsimply-.hung up onV the bent pin 6.9. A downward pressure bythe thumb on the horn 73' of the leaf 63' disengages the pin 68 from the hole in the arm 9,. so that the'handleis in no wise connected to the arm '9, while the operating arm` 9 moves to rear on recoil and returns. If'the handle 62 is again moved tothe rear after return of the operating arm the pin 67 in the operatlng arm again enters the ears 65' and 66l securing the leaves 63 64. together and securing the handle 62 to the operating arm..y

-the side ofthe slot 52', are marks, and iig` ures corresponding (Fig. 10)to indicate the number 'of cartridges remainingon the tray when the tray is at a height corresponding with any of these marks, the tray being visi.

ble through the slot.

It will be seen in Fig. lO'that the parts 62' 73.and 32 are placed in natural and convenient positions for manipulating. -'.'Ihe

thumb piece 73' is withineasy reach ofl the'.l thumb while resting on the hand1e'62, so

ytion to which the right hand is carried, both in moving from the handle 62" forward to push the handle 32 down and get a fresh magazine, and also after inserting a magazine with the palm of the hand,in moving back to' grasp the handlev 62 and the trigger; the thumb and fore iinger naturally grasping the handle 32, being close beside said handle While inserting the magazine and ready to grasp it.

The friction spring 97 on the top of the receiver, bears on the bolt locking plate, and serves to prevent its accidental shifting.

I have described the [i1-earn] in lthe best form with which I am acquainted. It is not necessary that all the parts should be used to make an `operative gun. ForI instance the automatic loading apparatus Amight be 'o'mitted and the gun worked by hand. Icau also substitute otherand equivalent parts in many of the combinations named, without departing from the spirit of my invention. Ido not, therefore, limit vto the precise construction structions have important advantages.

What I claim iszl. The combination with an inclosing stock or casing, of-a gun barrel having external grooves to permit a circulation of air between the barrel and casing, and offer increased heat radiating surface, substantially .as described.

'shown in the drawings, save Where such con- IOO 2. The combination with the inclosingicasing having internal grooves, of the gun barrel having external grooves,thus forming an air space between the barrel and casing,sub stantially as described.

3. The combination with the gun barrel, of

Aan inclosing casing having internal grooves and ridges, forming air spaces betweenthe casing and barrel, substantially as described.

4. The combination with the bar-rel having external ribs and grooves extending circum ferential1y,of the inclosing casing having internal longitudinal ribs and grooves forming air passages, substantially as described.

5. The combination with a gun barrel, of an inclosing casing about the muzzle thereof, there being passages between the barrel and will draw a current of air between the barrel and casing, substantially as described.

6. The combination of a gun barrel and an inclosing casing therefor, and longitudinal passages between said ribs,.substantially as described.

ribs between the barrel and casing, and air 7. The combination with the gunbarrel, of a casing inclosing the barrel, leaving an air space between, and an air compressor-commu'nicatin g to said air space,substa`ntiall"y as IIO casing, near 'the muzzle, `and an air inlet at j the rear thereof, so that the blast of discharge 8. The combination with the gun casing, of a barrel having a longitudinal movement therein,and a space between the same, and

' an air compressor having a moving part connected to the barrel, so that the movement of the barrel actuates the compressor to force air into the space between the barrel and casing, substantially as described.

9. The combination with the casing and the gun barrel longitudinally movabletherein and having a space between the same, of an air compressing cylinder connected tothe barrel, a piston in said cylinder connected to the casing, and connections whereby an air jet ,is guided from the compressor to the space between the barrel and casing, substantially as described.

lO. The barrel supported in the stock to have longitudinal movement therein, a piston .plunger connected to the barrel, and an open ended cylinder in the stock into which cylinder the piston closes on the recoil of the barrel (forming a buer), the parts in combination substantially as described.

11. The barrel supported in the stock to have longitudinal movement therein, the piston plunger connected to said barrel, a cylinder in the stock into which the piston closes on recoil, and a coil spring surroundin'g the cylinder and piston and acting to return the barrel after recoil, substantially as described.

12. The barrel supported in the stock to have recoil therein, the plunger connected to said barrel, the cylinderinto which said plunger tits closely and having a valve therein in position to be opened by the plunger near the end of its rearward movement to relieve air pressure, and a spring to close the valve as the plunger moves forward, substantially as described.

13. In a breech loading gun, the combination with the barrel, of the longitudinally sliding bolt, having a transverse passage through the bolt the movable bolt locking bar extending transversely lof said passage and moving with said bolt, and locking shoulders in the frame with which` said locking bar engages substantially as described. f

14. In a breech loading gun, the combination with the longitudinally sliding bolt, of the locking bar extending transversely of the bolt and having a groove in one face, and a locking shoulder on the frame, with which the locking bar engages said shoulder constructed to enter the groove in the locking bar and permit the backward movement of the locking bar and bolt .when the locking bar is properly shifted, substantially as described. j

15. In a breech loading gum-the combination with the bolt, having twopieces withindependent longitudinal movement, of the transverse locking bar and shoulders on the frame with which said bar engages, and inclines on one of the bolt pieces engaging al projection on the locking bar to shift said bar laterally, substantially as described.

16. The combination with the barrel or chamber having a recess for the extractor, of the sliding bolt hayingan extractor which enters said. recess and engages the cartridge when the breech is closed, and a movable piece on the boltfin position to enter said recess and firmly hold the extractor in its engagement with the cartridge, substantially as described.

17. The combination with the bolt having cylindrical headed ring pin with its striking point in eccentric relation to the pin head, of the spring havingits rear bearing against the bolt, and its front end in line with the firing pin point and bearing against the pin head, substantially as described.

18. The combination, with the bolt of the tiring pin having a projection thereon, and

the transverse locking bar having an incline which engages the projection on the pin to start the tiring pin back, substantially as de- I scribed. i

19. The combination with the bolt and its tiring pin having a projection, of the transverse locking bar having a recess which is in the line of movement of said projection when the bar is in lockingposition, substantially as described.

20. The combination with the bolt and tiring pin, of the transverse locking bar having an abutment in position to engage the tiring pin, in one position of said pin, whereby the shift-- ing of said transverse bar is prevented, substantially as described.

2l. The barrel and connections supported in the stock and having a longitudinal movement therein under the impulse of recoil, a locking bar engaging therewith, and the trigger connectedto the locking bar so as to unlock the barrel when the trigger ispulled, in combination substantially as described.

22. The combination of the sear and a link connected thereto, the trigger connected to IOO said link, the stock and barrel having a lon gitudinal movement in the stock, and a barrel locking bar connected to the trigger in i,

such manner as to be released when the is released, substantially as described. 'f4

scar- 23. The combination of the stock barrel'a'id in the stock under impulse ot` recoil, a .locking bar engaging the barrel .'mechanism, aspring acting to hold said bar in locking engagement, and the trigger having a surface in position to compress the sprin g and unlock the bar when the trigger is pulled", substantially as described. l

24. The combination with the corrugated or tinted barrel and its inclosing casing, of a cylindrical barrel cover for the breech portion of the barrel, extending within the casingpr'oper and attached to the barrel, sub stantially as described.

25.4 .The combination with the barrel having connections having a longitudinal movement luted surface, of a cover over the same and upporting pieces connected to said barrel rover, and resting on the barrel substantially .s described.

26. The barrel having Fluted or corrugated ynrface, the filling pieces attached to the iarrel, a cover for the rear portion of the barlel restingon said filling pieces, and the sight ittached to the barrel by screws passing yhrongh'the cover and into the filling pieces, n combination substantially as described.

27. The bolt and its locking connections, he transversely moving locking bar, theslide raving inclines engaging said bar to shift the ame, and a spring actuat'ed draw rod having )perative engagement with said slide, in comiination substantially as described.

2S. The bolt and its longitudinal slide opratively connected, the locking bar, the bolt :losing spring, and a draw rod engaged by .aid spring said rod having a projection mov- Lble into or out of engagement with the bolt perating slide, in combination, substantially Ls described.

29. The frame, the bolt moving longitudixally therein, and having a detent, the magayine and a movable frame near the front of he bolt and in the path of movement of the :artridges, said frame operatively connected o the bolt detent, all combined substantially .s described. l

30. The magazine receiver having a central artit-ion, and a spring catch extending along aid partition and overhanging the opposite iompartment, so that the cartridge bodies in he compartment having the spring will hold aid spring to place as a detent to the other lompartment, substantially as described.

3l. The magazine open at bothedges and raving a central partition and having its side lates composed of'thin metal, and corrugated near each edge so that the corrugations serve .s clasps, in combination with the magazine eceiver having projections with which either if said clasps on the magazine may engage, ubstantially as described. i

32. The magazine receiver having a partiion plate at the front of the magazine, in comination with the detachable magazine 4havng a partition which alignswith and forms continuation of the said receiver partition vhen the magazine is in place, substantially ,s described.

33. The magazine receiver having a recess it its forward end, and a movable spring folower in position to press upward on the carridges in the magazine under the receiver lroper, or to move forward into said recess iway from the magazine,` in combination with he detachable magazine having its mouth pening upwardly into the receiver proper, ubstantially as described.

34. The combination with the magazine-reeiver having a recess at the front thereof, of i spring follower, and an incline in said receiver engaging a projection on said follower, whereby said follower may be put under tension by a longitudinal movement in said recess, substantially as described.

35. The partitioned open ended magazine and recessed magazine receiver, and a spring follower for each compartment of the maga- 'zine located in said receiver, all the followers being connected to a single frame and movable therewith, in combination, substantially as described.

36. The magazine-receiver provided with spring catches in position to hold down the cartridge follower when entering the magazine from the fron t, said receiver having a recess in front of the magazine, in combination with the follower having projections in position to disengage said catches by the longitudinal movement of said follower, all substantially as described.

37. The barrel, the frame, the bolt, and bolt closing mechanism substantially as described,a detent engaging the bolt to lhold it open, and a thumb piece at the side of the frame .connected to the bolt, vand engaging lthe bolt detent as the bolt reaches its-extreme rear position, all combined substantially as described. l

38. The spring actuated bolt closing mechanism and a detent therefor, the magazine, and a `swinging frame at the front Vof the magazine in the path of movement of the cartridges,the frame having an actuating rod connected to said detent, in combination substantially as described. 4 I

39. The magazine, the bolt and bolt detent, the swinging framein'proximity tothe magazine and hung on movable pivots in the frame, and the actuating rod connecting the swinging frame and bolt detent, in combination substantially as described.

40. The receiver, the magazine, the bolt and bolt detent arranged substantially as described, the swinging frame connected to said detent, and the safety stop in the path of .movement of the frame, to prevent the movement of said frame when a-cart-ridge is in the gun chamber, all combined substantiallyas described.

41. The receiver, magazine, and the bolti closing mechanism constructed to operate substantially as described, the rocking frame connected to the bolt closing mechanism and 'los IIO

having an inclined `faoe,vand the safety stop engaging said frame when held by a cartridge in the chamber, and provided also with an inclined operating face, all combined substantially as described.

42. The magazine and the movable magazine stop, and the movable cartridge follower in the magazine, said follower having-a part or arm which engages the magazine stop to close the same, whenever the follower is moved from its feeding position, the parts combined substantially as described.

43. The receiver and the bolt having an actuating arm connected thereto, and the removable thumb piece connected to said arm by a spring actuated pin,in combination substatially as described.

44. The combination with fthe magazine having a spring actuated follower, of a rock shaft having projections at denite distances l apart to act as detents to said follower, and

an engaging surface on the movable part of the breech in position to engage and swing said rock shaft to release the follower during the bolt movement, substantially as described1r 45. The combination with the double maga.- zine having a spring follower in each compartment, of a rock shaft at each side of the magazine having spaced projections acting as detents to the followers, and projections from the moving part of the breech in position 'to engage and swingl the rock shafts, and a detent for the cartridges in one apartment whereby the magazines may be made to feed successively, substantially as described.

46. The frame having an inclined slot in its side, and the magazine follower having a pin projecting through said slot, in combination substantially as described.

47. The combination with the receiver the magazine and breech bolt of a curved plate hung inthe receiver to turn about thehreech bolt and act as a magazine stop and loading floor, substantially as described. A

48. The receiver and a bolt moving longitudinally therein, said bolt having an extractor, the magazine, and the magazine stop at the mouth of the magazine and in the path of movement of a cartridge which is retracted by the extractor, in combination substantially as described.

49. The combination with the magazine and the curved piece constituting the magazine stop, said piece havinga spiral groove there-' in, of the movable magazine follower having a projection which enters said groove in the .magazine stop, substantially as described.

50. A magazine gun having a magazine receiver provided with spreaders, and a magazine having spring sides and .a contracted mouth, said magazine engaging said spreaders as the magazine is forced into the receiver,

. whereby the mouth of the magazine is opened to pass cartridges, all substantially as described.

51. A magazine gun having a magazine receiver, a movable magazine ejector in said receiver, and a magazine having elastic holding catches, which catches are detached by means of said magazine ejector, where it engages the magazine all substantially as described. l

52. The gun having a magazine receiver,

\ the spring actuated follower movable in said receiver out of the way of the` magazine and contained cartridges, and the detachable magazine having its sides bent in to guide the cartridge heads, and open at front so that the said follower may pass under the cartridges when the magazine is in its receiver, all substantially as described.

53. The combination with the magazineo`f the tray or-follower therein, and .a curved spring secured tothe front of said tray and to a frame independent of the magazine, and acting tolift said tray when in operation, substantially as described.

. 54. The combination with the bolt and its operating slide, of a handle-or thumb piece having aspring leaf in contact with the operating slide, a retaining pin serving to retain said thumb piece' in contact with the slide, and a pin ou the frame in position to press back and disengage said retaining pin at the proper time to disconnect the slide and thumb close into the cylinder on the recoil, a spring 5 valve at the rear end of said cylinder, in position to be opened bythe piston in its ex1 treme backward movement, and a spring acting on the barrel to press it forward,`substan tially as described.

roo.

57. The combination with the barrel, o ffa f spirally coiledwire wound on the barrel and presenting ridges on 'the outer surface of said barrel to secure quick radiations of heat, substantially as described. A.

58. The combination with the barrel and inclosing casing havingaspace between, of the wire spirally wound on the barrel and presenting exterior ridges, the rear .ends of the wire extending back in about a right line into the enlarged or screw threaded portion of the barrel.

59. The barrel having a recess for the ex-f tractor, the bolt having an extractor in position to enter said recess, a movable piece actuated by the bolt locking mechanism to enter said recess and lock the extractor tothe cartridge, and a retaining catch acting on said movable piece to hold the same out of 'engagement with the extractor when the boltstarts to close, the parts in vcombination substantially as described.

60. The breech bolt consisting of a cylindrical body portion having transverse perforations and slotted longitudinally for the reception of the tiring pin, and the cover extending lengthwise in the* upper portion of t-he said bolt body, and having a transverse perforation in line with the hole in the body, Abar into or out of looked position, all in com- `and securing devices, combined substantially bination substantially as described. xo

`as described. In testimony whereof I affix my Signat-u re in 31. The receiver having shoulders or abutpresence of two witnesses.

ments, the bolts, and the locking bar extend- HARRY K. WHITE. ling across the bolt in position to engage said Witnesses:

abntments, and an operating means moving in W. A. BARTLETT, f

line with the bolt for throwing the locking, PHILIP F. LARNER. 

